\documentclass{standalone}
\usepackage{tikz}
\usepackage{ctex,siunitx}
\setCJKmainfont{Noto Serif CJK SC}
\usepackage{tkz-euclide}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{circuitikz}
\usetikzlibrary{patterns, calc}
\usetikzlibrary {decorations.pathmorphing, decorations.pathreplacing, decorations.shapes,}
\ctikzset{bipoles/length=1cm}
\begin{document}
\small
\begin{circuitikz}[>=latex, scale=1.0,european]
  % \useasboundingbox(0.9,0)rectangle(5.1,5);
  \ctikzset{bipoles/oscope/width=1.8,bipoles/oscope/height=2.5,bipoles/oscope/waveform=zero}
  \draw(3.5,3.3) node[oscopeshape, fill=lightgray!50](O2){};
  \draw(0,0) to [cute open switch] (2,0) to [battery2](3,0) --(3,0-|O2.in 2)--(O2.in 2);
  \draw(0,0)--(0,1.5) to [european, pR,name=hb] (3,1.5)--(3,0);
  \draw(O2.in 1)--(O2.in 1|-hb.wiper)--(hb.wiper);   
  \fill (O2.in 2) circle (1pt)node[right]{地};
  \fill (O2.in 1) circle (1pt)node[left]{Y};
\end{circuitikz}
\end{document}